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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The isolation and reconstitution of the ADP/ATP carrier from wild-type Saccharomyces cerevisiae. Identification of primarily one type (AAC-2).

Methods for isolation of the ADP/ATP carrier (AAC) from yeast (Saccharomyces cerevisiae) are described which allow separation of the carrier from the initially copurified porin which poses a specific problem in yeast. The procedure varies according to whether one wishes to obtain a stable CAT-AAC complex, the free and active AAC for reconstitution, or the SDS-denatured pure AAC peptide. CNBr cleavage of AAC enabled us to differentiate clearly between isogenes AAC-1 and AAC-2 recently found in yeast, due to the exclusive occurrence of a methionine (M-115) residue at the end of the first domain in AAC-2. Thus the AAC isolated from wild-type yeast is primarily or exclusively AAC-2. The isolated AAC is active in ADP/ATP exchange in reconstituted liposomes with a Vmax of 1100 mumol/min per g protein and Km = 15 microM for ADP, and a Vmax of 900 mumol/min per g protein and Km = 9 microM for ATP.[1]


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